Exclusive B → M ν over(ν, ̄) ( M = π, K, ρ, K* ) decays and leptophobic Z′ model

Jong Hun Jeon; C. S. Kim; Jake Lee; Chaehyun Yu

doi:10.1016/j.physletb.2006.03.069

Exclusive B → M ν over(ν, ̄) ( M = π, K, ρ, K^* ) decays and leptophobic Z^′ model

Jong Hun Jeon, C. S. Kim, Jake Lee, Chaehyun Yu

Department of Physics

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

We consider the exclusive flavor changing neutral current processes B → M ν over(ν, ̄) ( M = π, K, ρ, K^* ) in the leptophobic Z^′ model, in which the charged leptons do not couple to the extra Z^′ boson. We find that these exclusive modes are very effective to constrain the leptophobic Z^′ model. In the leptophobic Z^′ model, additional right-handed neutrinos are introduced and they can contribute to the missing energy signal in B → M + E/ decays. Through the explicit calculations, we obtain quite stringent bounds on the model parameters, | U_{s b} ^Z′ | {less-than or slanted equal to} 0.29 and | U_{d b}^Z′ | {less-than or slanted equal to} 0.61, from the already existing experimental data. We also briefly discuss an interesting subject of massive right-handed neutrinos, which might be connected with the dark matter problem.

Original language	English
Pages (from-to)	270-277
Number of pages	8
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	636
Issue number	5
DOIs	https://doi.org/10.1016/j.physletb.2006.03.069
Publication status	Published - 2006 May 18

Bibliographical note

Funding Information:
We thank Y.G. Kim and U. Haisch for careful reading and useful comments. The work of J.H.J. was supported in part by Brain Korea 21 Program and in part by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) No. R02-2003-000-10050-0. The work of C.S.K. was supported in part by CHEP-SRC Program and in part by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) No. KRF-2005-070-C00030 and in part by JSPS Fellowship. The work of J.L. was supported in part by Brain Korea 21 Program and in part by Grant No. F01-2004-000-10292-0 of KOSEF-NSFC International Collaborative Research Grant. The work of C.Y. was supported by the Korea Research Foundation Grant funded by Korea Government (MOEHRD, Basic Research Promotion FUND) (KRF-2005-075-C00008).

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1016/j.physletb.2006.03.069

Cite this

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title = "Exclusive B → M ν over(ν,{\= }) ( M = π, K, ρ, K* ) decays and leptophobic Z′ model",

abstract = "We consider the exclusive flavor changing neutral current processes B → M ν over(ν,{\= }) ( M = π, K, ρ, K* ) in the leptophobic Z′ model, in which the charged leptons do not couple to the extra Z′ boson. We find that these exclusive modes are very effective to constrain the leptophobic Z′ model. In the leptophobic Z′ model, additional right-handed neutrinos are introduced and they can contribute to the missing energy signal in B → M + E/ decays. Through the explicit calculations, we obtain quite stringent bounds on the model parameters, | Us b Z′ | {less-than or slanted equal to} 0.29 and | Ud bZ′ | {less-than or slanted equal to} 0.61, from the already existing experimental data. We also briefly discuss an interesting subject of massive right-handed neutrinos, which might be connected with the dark matter problem.",

author = "Jeon, {Jong Hun} and Kim, {C. S.} and Jake Lee and Chaehyun Yu",

note = "Funding Information: We thank Y.G. Kim and U. Haisch for careful reading and useful comments. The work of J.H.J. was supported in part by Brain Korea 21 Program and in part by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) No. R02-2003-000-10050-0. The work of C.S.K. was supported in part by CHEP-SRC Program and in part by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) No. KRF-2005-070-C00030 and in part by JSPS Fellowship. The work of J.L. was supported in part by Brain Korea 21 Program and in part by Grant No. F01-2004-000-10292-0 of KOSEF-NSFC International Collaborative Research Grant. The work of C.Y. was supported by the Korea Research Foundation Grant funded by Korea Government (MOEHRD, Basic Research Promotion FUND) (KRF-2005-075-C00008). ",

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T1 - Exclusive B → M ν over(ν, ̄) ( M = π, K, ρ, K* ) decays and leptophobic Z′ model

AU - Jeon, Jong Hun

AU - Kim, C. S.

AU - Lee, Jake

AU - Yu, Chaehyun

N1 - Funding Information: We thank Y.G. Kim and U. Haisch for careful reading and useful comments. The work of J.H.J. was supported in part by Brain Korea 21 Program and in part by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) No. R02-2003-000-10050-0. The work of C.S.K. was supported in part by CHEP-SRC Program and in part by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) No. KRF-2005-070-C00030 and in part by JSPS Fellowship. The work of J.L. was supported in part by Brain Korea 21 Program and in part by Grant No. F01-2004-000-10292-0 of KOSEF-NSFC International Collaborative Research Grant. The work of C.Y. was supported by the Korea Research Foundation Grant funded by Korea Government (MOEHRD, Basic Research Promotion FUND) (KRF-2005-075-C00008).

PY - 2006/5/18

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N2 - We consider the exclusive flavor changing neutral current processes B → M ν over(ν, ̄) ( M = π, K, ρ, K* ) in the leptophobic Z′ model, in which the charged leptons do not couple to the extra Z′ boson. We find that these exclusive modes are very effective to constrain the leptophobic Z′ model. In the leptophobic Z′ model, additional right-handed neutrinos are introduced and they can contribute to the missing energy signal in B → M + E/ decays. Through the explicit calculations, we obtain quite stringent bounds on the model parameters, | Us b Z′ | {less-than or slanted equal to} 0.29 and | Ud bZ′ | {less-than or slanted equal to} 0.61, from the already existing experimental data. We also briefly discuss an interesting subject of massive right-handed neutrinos, which might be connected with the dark matter problem.

AB - We consider the exclusive flavor changing neutral current processes B → M ν over(ν, ̄) ( M = π, K, ρ, K* ) in the leptophobic Z′ model, in which the charged leptons do not couple to the extra Z′ boson. We find that these exclusive modes are very effective to constrain the leptophobic Z′ model. In the leptophobic Z′ model, additional right-handed neutrinos are introduced and they can contribute to the missing energy signal in B → M + E/ decays. Through the explicit calculations, we obtain quite stringent bounds on the model parameters, | Us b Z′ | {less-than or slanted equal to} 0.29 and | Ud bZ′ | {less-than or slanted equal to} 0.61, from the already existing experimental data. We also briefly discuss an interesting subject of massive right-handed neutrinos, which might be connected with the dark matter problem.

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